Large-Diameter Conventional Lathe
Large-Diameter Conventional Lathe | Heavy-Duty Engine Turning Lathes
Heavy-Duty Conventional Lathes for Large-Diameter and Oversized Workpieces
Large Swing Diameter: Engineered specifically for machining oversized and large-diameter components.
Heavy-Duty Construction: Built with rigid bed structures to maintain stability during aggressive cutting operations.
Versatile Workpiece Capacity: Ideal for handling heavy shafts, industrial rollers, flanges, and structural parts.
Custom Engine Configurations: Flexible spindle bore, bed length, and motor options tailored to specific turning requirements.

Large-diameter conventional lathes are built for processing oversized mechanical components that require exceptional swing clearance, high rigidity, and consistent stability under heavy cutting loads. These machines provide the mechanical torque and structural support necessary for large-scale turning tasks where standard engine lathes fall short.
Anyang manufactures heavy-duty conventional turning machines engineered for challenging industrial applications. Used across steel production, energy generation, equipment manufacturing, and heavy repair workshops, these lathes handle large-scale turning with direct mechanical control.
Depending on component geometry and operational demands, machines are configured with specific swing diameters, extended bed lengths, high-torque main drives, and varied spindle bores to ensure steady operational precision.
Large-Diameter Machining Capabilities
Large Swing Capacity: Accommodates high-diameter workpieces requiring significant clear swing over the bed and cross slide.
Generous Spindle Bore: Supports long tubular, shaft, or piping components through the headstock for multi-pass machining.
Heavy Load Support: Reinforced bed castings and tailstock designs maintain balance under massive workpiece weights.
Extended Bed Lengths: Modular bed options allow precise turning across long axial spans without structural deflection.
High-Torque Roughing: Delivers consistent mechanical power for heavy material removal on forged or cast metals.
Versatile Component Turning: Handles varied geometries including shafts, stepped cylinders, flanges, and industrial rollers.
Typical Machining Capabilities
|
Parameter |
Typical Range / Options |
|
Swing Over Bed |
1000 mm – 2000 mm |
|
Maximum Turning Diameter |
Up to 1600 mm |
|
Maximum Workpiece Length |
1000 mm – 12000 mm |
|
Maximum Workpiece Weight |
Up to 20 Tons |
|
Spindle Bore |
105 mm – 300 mm |
|
Spindle Speed Range |
3.15 rpm – 315 rpm |
|
Main Motor Power |
18.5 kW – 45 kW |
|
Bed Width |
600 mm – 1100 mm |
|
Tailstock Quill Diameter |
120 mm – 220 mm |
|
Tailstock Configuration |
Manual / Motorized / Hydraulic |
|
Custom Configuration |
Available upon request |
What Can a Large-Diameter Conventional Lathe Machine?
Large Drive Shafts
Turning and threading long, heavy power-transmission shafts for heavy equipment.
Industrial Rollers
Machining steel, print, and processing rollers requiring consistent concentricity.
Heavy Flanges
Facing and boring large-diameter pipe connections and pressure-vessel flanges.
Cylindrical Components
Turning internal and external diameters on large hollow or solid forgings.
Turbine Rotors
Roughing and finishing rotational shafts used in power plant machinery.
Large Tubes and Pipes
Threading and turning large-bore industrial piping and casing systems.
Mining Equipment Parts
Processing heavy-duty crusher shafts, gears, and structural housings.
Machine Tool Columns
Precision facing and turning of large structural castings and housings.
Steel Production: Used for turning wear-resistant rollers and processing heavy shafting in mill operations.
Heavy Machinery Manufacturing: Suitable for machining structural shafts, housings, and mechanical drives.
Energy & Power Generation: Used in generating facilities for maintaining large turbine rotors and shafts.
Oil & Gas Equipment: Ideal for turned components, wellhead housings, and large piping connections.
Marine Engineering: Applied in machining propeller shafts, stern tubes, and heavy mechanical couplings.
Mining & Earthmoving: Essential for re-machining large gear shafts, pins, and heavy structural rolls.
General Contract Machining: Provides job shops with versatile turning capacity for varied large-scale workpieces.

Rigid One-Piece Bed Casting
High-tensile iron bed casting provides maximum vibration damping during rough turning.
Heavy-Spindle Assembly
Supported by precision roller bearings to maintain rotational accuracy under heavy load.
Hardened and Ground Guideways
Induction-hardened bedways minimize wear and preserve alignment over extended use.
High-Torque Gearbox
Internal gearing engineered to deliver maximum cutting torque at low rotational speeds.
Heavy Carriage & Cross Slide
Wide saddle layout distributes cutting forces evenly across the bed section.
Robust Tailstock Design
Large-diameter quill provides secure center-support for long, heavy workpieces.
Centralized Lubrication
Automatic or semi-automatic lubrication systems keep critical slideways fully protected.
Ergonomic Operator Controls
Intuitive mechanical levers allow fine manual control over feeds and thread pitches.
Heavy-Duty Machine Structure
Heavy Cast Bed
High-rigidity structure dampens operational vibration during high-depth cuts.
01
Spindle Gearbox
Precision-ground gears deliver high torque output across a broad range of speeds.
02
Carriage Assembly
Heavy slide construction ensures precise tool feed movement under heavy cutting resistance.
03
Tailstock Unit
Heavy-duty quill support preserves axis alignment on extended shaft work.
04
Feed Gearbox
Offers a wide selection of metric and inch thread pitches without complex gear changes.
05
Manufacturing & Quality Control
Engineering & Design
Machine structures are engineered using stress-analysis modeling to ensure operational rigidity.
Casting & Heat Treatment
Machine beds undergo natural aging and stress-relieving processes to prevent long-term deformation.
Precision Machining
Critical components are machined on large gantry planers and horizontal boring mills.
Assembly & Alignment
Experienced technicians assemble lead screws, gearboxes, and slideways to precise tolerances.
Operational Testing
Every machine undergoes full-load running tests, noise checks, and geometric alignment verifications.
Final Quality Inspection
Final accuracy checks are completed against strict manufacturing standards prior to packing.
Custom Large-Diameter Conventional Lathes
We configure large-diameter turning machines according to specific component dimensions, weight requirements, and cutting demands.
Swing clearance over bed and gap
Center distance up to 12 meters
Tailstock quill actuation methods
Main drive motor power options
Spindle bore sizes and chuck mountings
Tool post styles and rapid traverse configurations
Why Choose Us
Decades of Specialized Manufacturing Expertise
Our decades-long focus on heavy-duty lathe manufacturing gives us deep technical insight into structural rigidity and machining stability. We build reliable machines designed to handle demanding long-term operational schedules.
01
Heavy Machine Tool Infrastructure
Equipped with large-scale casting foundries, gantry milling machines, and precision testing bays, we maintain full quality control over major components. This ensures reliable structural integrity across all heavy machine beds and headstocks.
02
Engineering-Driven Configuration Support
Our technical engineers analyze your specific workpiece drawings, materials, and dimensional targets before recommending a machine. We ensure every unit is custom-tailored to deliver exact operational capabilities.
03
Strict Quality Verification & Global Delivery
Each lathe undergoes rigorous dynamic running tests, geometric alignment checks, and ocean-proof packaging prior to dispatch. We ensure smooth international delivery backed by ongoing spare parts supply and remote engineering support.
04

Global Supply of Large-Diameter Conventional Lathes
We supply industrial turning equipment directly to machine shops, plants, and distributors across Europe, North America, South America, the Middle East, Southeast Asia, and Africa.
Reinforced ocean-freight packaging
Secure container loading and rust-prevention treatment
Full technical operational documentation and foundation drawings
Complete spare parts availability and remote engineering assistance
Request a Quote for a Large-Diameter Conventional Lathe
Tell us about your workpiece dimensions, target material, weight, and machining requirements. Our engineers will review your details and provide a tailored machine recommendation along with a direct price quotation.
As one of the leading large-diameter conventional lathe manufacturers and suppliers in China, our products have good reputation in the market. Please feel free to buy high quality large-diameter conventional lathe made in China here from our factory. For price consultation, contact us.
